Learning Mathematical Variables

What does a coefficient represent in an algebraic expression?

• A fixed value that does not change.

• The sum of all variables in the expression.

• A symbol for a value we don't know yet.

• A number used to multiply a variable.

What is a term in the context of algebra?

• A fixed value that does not change.

• A symbol for a value we don't know yet.

• A number used to multiply a variable.

• Either a single number or variable, or numbers and variables multiplied together.

How are terms in an algebraic expression separated?

• By multiplication or division symbols only.

• By addition or subtraction symbols, or sometimes by division.

• By equal signs.

• They are not separated; they are combined into one term.

What is an algebraic expression?

• A mathematical expression that consists only of numbers

• A mathematical expression that consists of variables, numbers, and operations

• A fixed numerical value

• A mathematical expression that cannot change

Which of the following are like terms?

• 7x and 2y

• 3x^2 and -2x^2

• 7x and 7x^2

• 3x^2 and -2y^2

What does the symbol ≠ represent in inequalities?

• a is less than b

• a is greater than b

• a is equal to b

• a is not equal to b

What does the symbol ≤ mean?

• a is greater than b

• a is less than or equal to b

• a is greater than or equal to b

• a is not equal to b

What is a solution to an equation as defined in the learning material?

• A mathematical expression that simplifies to zero.

• A value that, when replaced in a variable, makes the equation false.

• A value that, when replaced in a variable, makes the equation true.

• The process of finding the highest common factor.

Which point below is NOT part of the solution set?

• (0, 0)

• (5, 1)

• (-1, -3)

• (20, -5)

Which point below is NOT a part of the solution set?

• (0, 0)

• (0, 1)

• (-100, -3)

• (5, 10)